nature : a dark green powder. The relative density of 5.84 (25 ° C). The temperature of 300 ° C (decomposition). With water decomposition. Soluble acid and hydrochloric acid to produce a corresponding ammonium salt and a small amount of copper. With sulfuric acid and nitric acid decomposition and dramatic role. Chlorine and copper chloride formed. Hydrogen chloride reacted with cuprous chloride. By fluoride and ammonia copper at 280 ° C were obtained by the reaction.

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